Cotter-pin-locking means



GEORGE T. COOKE, OF NRWALK, GONNECTICU'I' COTTEE-PIN-L KINGI' MELLWS Application zfiled April 1,2,

This invention relates to certain new and useful iinprovenients in cotter pin looking devices in which the ends of a cotter pin are automatically opened or spread by the mere nsertion of the sanie into its coacting device.

The main objects of iny invention include economy of production, simplicity in construction, and general adaptability.

In the drawings- Fig. lis a cross seotional view of my invention as in use, the cotter pin being shown lin elevation;

Fig. 2 is a longitudinal section of the parts shown in section in Fig. l, the ootter pin being again shown in elevation.

Referring to the drawings, l is'a pin or bolt body to Which it is desired to ap ly a cotter pin. 2 is a Sleeve mounted on thelhody 1. The body of the pin or bolt 1 is provided zo with the usual transverse cotter pin bore or passage. The Sleeve 3 is provided with a cotter pin entrance passage 4 at one side and with two divergent cotter pin exit passages 5-6 at the opposite side. A Between the exit passages is a wedge element 7 for spreading the ends of the cotter pin. The parts are,so desioned that when the sleeve 3 is properly in place, the entrance passage 4 will line up With the bore through the body l, and the Wedge will stand in line with said bore. The apeX of the Wedge 7 lies directly at the inner eirculnferential sui'face of the ring Or Sleeve 3. Thus, When a cotter pin is inserted through the entrance passage, the two ends of said cotter pin Will ilnlnediately engage the apex of the Wedge 7 so that the arms of the pin 2 Will be colnpelled to straddle the Wedge. As the pin 2 is forced in these ends will be automatically bent outwardly as shown in Fig. l, whereby the cotter pin will be securely retained'in place against unintentional removal or aceidental esca e.

The passages 4:, 5 and 6 are defined by cir- (rumferentially Continuous Walls so that the cotter pin body and legs Will be confined and prevented from transverse escape from those passages.

Tn a cette): bolt looking device, a pin having Go a cotter pin passage therethl'ough. a Sleeve 1928. Serial N0. 269,379.

GEORGE T. COOKE.

A CERTIFIGATE OF CORRECTION.

Patent No. 1', 740, 284. Granted 'December 17, 1929, to

' GEORGE T. cooKE.

It is hereby`certified that error appears in the printed specification of the above numbered patent requiring correction as follows': In the elaim, line l, for the word ''pin' read bolt; and that the said Letters Patent should be read with this correction thereirl that the same may conforn lto therecord of the case in thePatent Office.

Signed and sealed this 9th-day of December, A. D. 1930.

(Seal) V W Acting Commissioner of Patents. 

